DIY Noise-Canceling Headphone Earbuds

Need a pair of earphones that will block out the irritating noise around you, say for an exceptionally long plane trip? This cool hack will cost you less than $1 and you’ll only need earplugs (which you get for free usually when you travel) and your own earbud headphones:

For many more DIY projects that will cost you under $3, head on over to Lifehacker.